This is a test and it's due is today. If anyone knows please help me I will mark as BRAINLIEST

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price